Struct docs::bytecode_vm::bytecode::instructions::Instructions

pub struct Instructions { /* private fields */ }

Implementations

impl Instructions

pub fn create() -> Result<Self, InstructionsError>

create Instructions

Panics

Panics if OOM (out of memory) and panic_flag is set to true

Errors InstructionsError::AllocationFailed

This function will return an error if panic_flag is set to false and OOM occured

pub fn to_string_with_highlight(&self, hidx: usize) -> String

Stringify this Instructions

• hidx - index of highlight target

pub fn add_instruction( &mut self, ins: Instruction ) -> Result<usize, InstructionsError>

Add new instruction at the end. return new Instruction’s offset

Errors InstructionsError

This function will return an error if this Instructions::grow() have failed.

pub unsafe fn update_instruction(&mut self, ins: Instruction, offset: usize)

Update instruction at offset with given ins

Safety

if lengths are different between ins and instruction at offset, There will be Corruption of this Instructions

pub fn remove_instruction(&mut self, new_len: usize)

Remove instructions by set Self::len with new_len

This will move Self::cursor with new position of next instruction’s one

pub fn read_instruction( &self, offset: usize ) -> Result<Instruction, InstructionsError>

Read Instruction at given offset

Errors InstructionsError::CannotRead

This function will return an error if failed to read opcode from Self::byte at offset to convert it as Instruction

pub fn length(&self) -> usize

Returns the length of this Instructions.

Trait Implementations

impl Clone for Instructions

fn clone(&self) -> Instructions

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Instructions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Instructions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Instructions

fn eq(&self, other: &Instructions) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Instructions